Brake disk for a motorcycle



FIG. 1 is a front view of the brake disk for a motorcycle showing ournew design;

FIG. 2 is a back view thereof;

FIG. 3 is right side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is an enlarged sectional view taken along line 6—6 in FIG. 1;and,

FIG. 7 is an enlarged perspective view.

The left side view is a mirror image of the right side view. The claimeddesign is directed to the outer surface of the brake disk for amotorcycle. The portions of the brake disk shown in broken lines form nopart of the claimed design.

The ornamental design for a brake disk for a motorcycle, as shown anddescribed.